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Alternating Current

Section: Physics

Question : 10 of 13

Marks: +1, -0

I_R

V_C

Solution:

The total resistance in the network is

Z =

\sqrt{R^2 + \left(\frac{1}{\omega C}\right)^2}

and when C is filled with dielectric, we get C ′ = 4C. Since current is I = V/Z and since Z in case B is less than Z in case A,we get

I_R^A

I_R^B

Since the voltage drop is proportional to the resistance offered by the circuit element, we get

V_C^A

V_C^B

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